An emergency folding hydraulic cat ladder with an extended catwalk

Abstract

The utility model relates to ladder technology field especially relates to an emergency folding hydraulic ladder of lengthening catwalk. Its technical scheme includes: setting at the rear end of the board car two groups catwalk components, each catwalk component includes main ladder and extension ladder, and one side below the main ladder is provided with the folding component, and the main ladder and extension ladder are provided with the folding component at the end of mutual approach, and the folding component includes folding hydraulic rod, and the output of folding hydraulic rod is provided with folding mechanism. The utility model discloses through the setting of catwalk component, greatly increased the length of catwalk, makes the operator can stably carry out the up and down goods operation to the board car, and through the setting of folding component and multiple connecting components mutual cooperation can make main ladder and extension ladder folding folding, and through the setting of folding component and ladder seat mutual cooperation can be folded folding when the main ladder and board car are in the assembly state, thereby can shield the rear of the board car, improve the utilization of the board car to the device.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and in particular to an emergency folding hydraulic ladder with an extended climbing path. Background Technology

[0002] In engineering transportation, logistics loading and unloading, and equipment transfer, flatbed trucks are often equipped with ladders as auxiliary tools for loading and unloading heavy materials and engineering equipment. Their practicality, safety, and convenience directly affect the efficiency and risk management of loading and unloading operations. However, the limited length of existing flatbed truck ladders results in steep inclines during loading and unloading, leading to insufficient stability for heavy equipment and large items, increasing the difficulty of operations. Extending the ladder can take up too much space due to its fixed structure, affecting the flatbed truck's passage or loading capacity. Furthermore, most ladders lack hydraulically driven folding capabilities, and some manually folding ladders are cumbersome and laborious to operate, with slow response times in emergency loading and unloading scenarios, making it difficult to quickly unfold or fold the ladder. Therefore, we propose an emergency folding hydraulic ladder with an extended ladder. Utility Model Content

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing an emergency folding hydraulic ladder with an extended climbing path.

[0004] The technical solution of this utility model is as follows: An emergency folding hydraulic ladder with an extended climbing ramp, comprising two sets of climbing ramp components located at the rear end of a flatbed cart. Each set of climbing ramp components includes a main ladder and an extension ladder. Multiple sets of connecting components are arranged near one end of the main ladder and the extension ladder. Each connecting component includes a side plate and a connecting plate. Multiple sets of ladder seats are arranged at the end of the main ladder away from the extension ladder. A retraction assembly is arranged on one side below the main ladder. The retraction assembly includes a retraction hydraulic cylinder. The mounting end of the retraction hydraulic cylinder is provided with a mounting cylinder seat. The output end of the retraction hydraulic cylinder is provided with a connecting seat. A folding assembly is also arranged near one end of the main ladder and the extension ladder. The folding assembly includes a folding hydraulic rod. The mounting end of the folding hydraulic rod is provided with a hinge seat. The output end of the folding hydraulic rod is provided with a folding mechanism. The folding mechanism includes a folding rod and a folding frame.

[0005] Preferably, the mounting end of the ladder seat is installed corresponding to the rear end of the trolley, the mounting end of the main ladder is installed corresponding to the connecting end of the ladder seat, and the lower part of the extended ladder away from the main ladder is arranged in an inclined shape.

[0006] Preferably, the mounting end of the side plate is installed corresponding to the main ladder, the mounting end of the connecting plate is installed corresponding to the extension ladder, a rotating shaft is provided between the side plate and the connecting plate, and the two sets of connecting components that are far apart from each other also include pad legs provided on the outer ring of the rotating shaft.

[0007] Preferably, the mounting end of the mounting cylinder seat is installed corresponding to the rear end of the flatbed truck, the mounting end of the retractable hydraulic cylinder is installed corresponding to the connecting end of the mounting cylinder seat, the mounting end of the connecting seat is installed corresponding to the lower side of the main ladder, and the output end of the retractable hydraulic cylinder is installed corresponding to the connecting end of the connecting seat.

[0008] Preferably, the mounting end of the hinge seat is installed corresponding to one side of the main ladder, the mounting end of the folding hydraulic rod is installed corresponding to the connecting end of the hinge seat, the folding rod and the folding frame are provided with a connecting rod close to each other at one end, and the output end of the folding hydraulic rod is installed corresponding to the outer ring of the connecting rod.

[0009] Preferably, a stabilizing mechanism is provided at the position of the folding mechanism at one end of the main ladder and the extension ladder. The stabilizing mechanism includes a first fixing frame disposed between the folding rod and the main ladder, and a second fixing frame disposed between the folding frame and the extension ladder. The end of the folding rod away from the folding frame is installed corresponding to one side of the first fixing frame, and the end of the folding frame away from the folding rod is installed corresponding to one side of the second fixing frame.

[0010] Preferably, two sets of pads are provided on one side of the lower part of the main ladder, and the length of the two sets of pads is the same as the width of the pad legs. A hook is provided on one side of the main ladder.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] This utility model has a simple overall structure. The climbing mechanism greatly increases the length of the climbing mechanism, enabling the operator to stably load and unload goods onto the trolley. The folding mechanism and multiple connecting components work together to allow the main ladder and extension ladder to be folded and extended. At the same time, the folding mechanism and ladder seat work together to allow the main ladder to be folded and extended when it is assembled with the trolley, thereby shielding the rear of the trolley and improving the utilization rate of the device. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the present invention when assembled with a flatbed cart;

[0014] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model from another perspective.

[0016] Reference numerals: 1. Climbing ladder assembly; 11. Main climbing ladder; 12. Extension climbing ladder; 2. Connecting assembly; 21. Side plate; 22. Connecting plate; 23. Rotating shaft; 24. Pad leg; 3. Climbing ladder seat; 4. Retraction assembly; 41. Retraction hydraulic cylinder; 42. Mounting cylinder seat; 43. Connecting seat; 5. Folding assembly; 51. Folding hydraulic rod; 52. Hinge seat; 53. Folding mechanism; 531. Folding rod; 532. Folding frame; 533. Connecting rod; 54. Stabilizing mechanism; 541. Fixing frame one; 542. Fixing frame two; 6. Pad block; 7. Hook. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3 This utility model provides a technical solution: it includes two sets of climbing assemblies 1 set at the rear end of a flatbed truck. Each set of climbing assemblies 1 includes a main climbing ladder 11 and an extension climbing ladder 12. Multiple sets of climbing ladder seats 3 are set at the end of the main climbing ladder 11 away from the extension climbing ladder 12. The mounting end of the climbing ladder seat 3 is installed corresponding to the rear end of the flatbed truck and is fixedly connected to the rear end of the flatbed truck. The mounting end of the main climbing ladder 11 is installed corresponding to the connecting end of the climbing ladder seat 3 and is rotatably connected to the connecting end of the climbing ladder seat 3. The extension climbing ladder 12 is set with an inclined surface at the end away from the main climbing ladder 11. The inclined surface at the end of the extension climbing ladder 12 can increase the contact area with the ground, thereby making the climbing ladder more stable in use. A hook 7 is set on one side of the main climbing ladder 11. The mounting end of the hook 7 is fixedly connected to one side of the main climbing ladder 11. The hook 7 can be used to lift the device and improve the efficiency of disassembly and assembly of the device.

[0019] Multiple connecting components 2 are arranged near each other at one end of the main ladder 11 and the extension ladder 12. Each connecting component 2 includes a side plate 21 and a connecting plate 22. The mounting end of the side plate 21 is installed correspondingly to the main ladder 11 and is fixedly connected to it. The mounting end of the connecting plate 22 is installed correspondingly to the extension ladder 12 and is fixedly connected to it. A rotating shaft 23 is provided between the side plate 21 and the connecting plate 22. A shaft hole is correspondingly opened at one end of the side plate 21 and the connecting plate 22. The outer ring of the rotating shaft 23 is rotatably connected to the inner wall of the shaft hole. The arrangement of the side plate 21, the connecting plate 22, and the rotating shaft 23 allows the main ladder 11 and the extension ladder 12 to connect... The ladder 12 is rotatably connected. The two sets of connecting components 2 that are far apart from each other also include pad legs 24 set on the outer ring of the rotating shaft 23. One end of the pad leg 24 is provided with a connecting hole. The outer ring of the rotating shaft 23 is in contact with the inner wall of the connecting hole. The pad leg 24 is rotatably connected to the rotating shaft 23. Two sets of pad blocks 6 are provided on one side below the main ladder 11. The mounting end of the pad block 6 is fixedly connected to the main ladder 11. The length of the two sets of pad blocks 6 is the same as the width of the pad leg 24. The arrangement of the two sets of pad blocks 6 and the pad leg 24 can provide support in the middle when the main ladder 11 and the extension ladder 12 are in the folded state, thereby greatly improving the stability of the main ladder 11 and the extension ladder 12 when they are in the folded state.

[0020] The main ladder 11 and the extension ladder 12 are also equipped with a folding assembly 5 at one end near each other. The folding assembly 5 includes a folding hydraulic rod 51. The mounting end of the folding hydraulic rod 51 is provided with a hinge seat 52. The mounting end of the hinge seat 52 is installed corresponding to one side of the main ladder 11 and is fixedly connected to one side of the main ladder 11. The mounting end of the folding hydraulic rod 51 is installed corresponding to the connecting end of the hinge seat 52 and is rotatably connected to the hinge seat 52. The folding hydraulic rod 51 provides power to... A folding mechanism 53 is provided at the outlet end. The folding mechanism 53 includes a folding rod 531 and a folding frame 532. A connecting rod 533 is provided at one end of the folding rod 531 and the folding frame 532, close to each other. The output end of the folding hydraulic rod 51 is installed corresponding to the outer ring of the connecting rod 533, and the output end of the folding hydraulic rod 51 is rotatably connected to the outer ring of the connecting rod 533. A stabilizing mechanism 54 is provided at one end of the main ladder 11 and the extension ladder 12, corresponding to the position of the folding mechanism 53. The stabilizing mechanism 54 includes components provided at the folding end. A first fixing bracket 541 is provided between the rod 531 and the main ladder 11. The mounting end of the first fixing bracket 541 is fixedly connected to the main ladder 11. A second fixing bracket 542 is provided between the folding frame 532 and the extension ladder 12. The mounting end of the second fixing bracket 542 is fixedly connected to the extension ladder 12. The end of the folding rod 531 away from the folding frame 532 is installed corresponding to one side of the first fixing bracket 541. The mounting end of the folding rod 531 is rotatably connected to one side of the first fixing bracket 541. The end of the folding frame 532 away from the folding rod 531... Installed on one side of the fixed frame 542, the mounting end of the folding frame 532 is rotatably connected to one side of the fixed frame 542. The setting of the stabilizing mechanism 54 can make the folding mechanism 53 more stable when it is assembled with the climbing assembly 1. The setting of the folding assembly 5 can make the main climbing ladder 11 and the extension climbing ladder 12 rotate and fold through the connecting assembly 2. The foldable setting can extend the length of the climbing ladder, thereby reducing the climbing ladder angle, making it easier to get on and off the platform, and also reducing the floor space occupied by the climbing ladder when it is not in use.

[0021] A retraction assembly 4 is installed on one side below the main ladder 11. The retraction assembly 4 includes a retraction hydraulic cylinder 41. The mounting end of the retraction hydraulic cylinder 41 is provided with a mounting cylinder seat 42. The mounting end of the mounting cylinder seat 42 is installed corresponding to the rear end of the trolley and is fixedly connected to the rear end of the trolley. The mounting end of the retraction hydraulic cylinder 41 is installed corresponding to the connecting end of the mounting cylinder seat 42 and is rotatably connected to the mounting cylinder seat 42. The output end of the retraction hydraulic cylinder 41 is provided with a connection... The mounting end of the connecting seat 43 is installed corresponding to the lower side of the main ladder 11. The mounting end of the connecting seat 43 is fixedly connected to the lower side of the main ladder 11. The output end of the retraction hydraulic cylinder 41 is installed corresponding to the connecting end of the connecting seat 43. The output end of the retraction hydraulic cylinder 41 is rotatably connected to the connecting seat 43. The retraction assembly 4 enables the main ladder 11 to be folded and retracted when it is assembled with the trolley, thereby shielding the rear of the trolley and improving the utilization rate of the trolley for this device.

[0022] In this embodiment, the operator first fixes the ladder seat 3 to the rear end of the trolley, then fixes the side plate 21 to one end of the main ladder 11, and then fixes the connecting plate 22 to one end of the extension ladder 12. The side plate 21 and the connecting plate 22 are connected by the rotating shaft 23, so that the main ladder 11 and the extension ladder 12 are rotatably connected. Then, one end of the main ladder 11 is assembled to the ladder seat 3 at the rear end of the trolley, thus completing the assembly of the climber assembly 1 and the trolley. At this time, the main ladder 11 and the extension ladder 12 are set in an unfolded state. Then, the operator fixes the mounting cylinder seat 42 to the rear end of the trolley according to the assembly position of the climber assembly 1, and assembles the connecting seat 43 on the lower side of the main ladder 11. Finally, the operator connects the mounting end and the output end of the retractable hydraulic cylinder 41. Install the mounting cylinder seat 42 and connecting seat 43. At this time, the output end of the retractable hydraulic cylinder 41 is in a retracted state. Then, the operator fixes the first fixing frame 541 to one end of the main ladder 11 and the second fixing frame 542 to one end of the extension ladder 12. Then, the folding rod 531 and folding frame 532 of the folding mechanism 53 are assembled to the first fixing frame 541 and the second fixing frame 542 respectively. Then, the output end of the folding hydraulic rod 51 and the folding rod 531 are connected to the folding frame 532 through the connecting rod 533. Finally, the mounting end of the folding hydraulic rod 51 is connected to the hinge seat 52 below the main ladder 11. At this time, the folding mechanism 53 is set in a "V" shape and the output end of the folding hydraulic rod 51 is in an extended state, thus completing the assembly operation of this device with the cart.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An emergency folding hydraulic ladder with extended ramps, comprising two sets of ramp components (1) disposed at the rear end of a flatbed truck, characterized in that: Each set of climbing components (1) includes a main climbing ladder (11) and an extension climbing ladder (12). Multiple sets of connecting components (2) are arranged near one end of the main climbing ladder (11) and the extension climbing ladder (12). Each connecting component (2) includes a side plate (21) and a connecting plate (22). Multiple sets of climbing ladder seats (3) are arranged at the end of the main climbing ladder (11) away from the extension climbing ladder (12). A retraction component (4) is arranged on one side below the main climbing ladder (11). The retraction component (4) includes a retraction hydraulic cylinder (41). 1) The mounting end is provided with a mounting cylinder seat (42), the output end of the retracting hydraulic cylinder (41) is provided with a connecting seat (43), the main ladder (11) and the extension ladder (12) are also provided with a folding assembly (5) at one end close to each other, the folding assembly (5) includes a folding hydraulic rod (51), the mounting end of the folding hydraulic rod (51) is provided with a hinge seat (52), the output end of the folding hydraulic rod (51) is provided with a folding mechanism (53), the folding mechanism (53) includes a folding rod (531) and a folding frame (532).

2. The emergency folding hydraulic ladder with an extended climbing path according to claim 1, characterized in that, The mounting end of the ladder seat (3) is installed corresponding to the rear end of the board car, the mounting end of the main ladder (11) is installed corresponding to the connecting end of the ladder seat (3), and the extension ladder (12) is set in an inclined shape at the end away from the main ladder (11).

3. The emergency folding hydraulic ladder with an extended climbing path according to claim 1, characterized in that, The mounting end of the side plate (21) is installed corresponding to the main ladder (11), and the mounting end of the connecting plate (22) is installed corresponding to the extension ladder (12). A rotating shaft (23) is provided between the side plate (21) and the connecting plate (22). The two sets of connecting components (2) that are far apart from each other also include pad legs (24) provided on the outer ring of the rotating shaft (23).

4. The emergency folding hydraulic ladder with an extended climbing path according to claim 1, characterized in that, The mounting end of the mounting cylinder seat (42) is installed corresponding to the rear end of the flatbed truck. The mounting end of the retractable hydraulic cylinder (41) is installed corresponding to the connecting end of the mounting cylinder seat (42). The mounting end of the connecting seat (43) is installed corresponding to the lower side of the main ladder (11). The output end of the retractable hydraulic cylinder (41) is installed corresponding to the connecting end of the connecting seat (43).

5. An emergency folding hydraulic ladder with an extended climbing path according to claim 1, characterized in that, The mounting end of the hinge seat (52) is installed corresponding to one side of the main ladder (11), the mounting end of the folding hydraulic rod (51) is installed corresponding to the connecting end of the hinge seat (52), the folding rod (531) and the folding frame (532) are provided with a connecting rod (533) at one end close to each other, and the output end of the folding hydraulic rod (51) is installed corresponding to the outer ring of the connecting rod (533).

6. The emergency folding hydraulic ladder with an extended climbing path according to claim 1, characterized in that, The main ladder (11) and the extension ladder (12) are provided with a stabilizing mechanism (54) at one end of each other corresponding to the position of the folding mechanism (53). The stabilizing mechanism (54) includes a first fixing frame (541) provided between the folding rod (531) and the main ladder (11), and a second fixing frame (542) provided between the folding frame (532) and the extension ladder (12). The end of the folding rod (531) away from the folding frame (532) is installed corresponding to one side of the first fixing frame (541), and the end of the folding frame (532) away from the folding rod (531) is installed corresponding to one side of the second fixing frame (542).

7. An emergency folding hydraulic ladder with an extended climbing path according to claim 3, characterized in that, Two sets of pads (6) are provided on one side of the main ladder (11), the length of the two sets of pads (6) is the same as the width of the pad leg (24), and a hook (7) is provided on one side of the main ladder (11).

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